By Frankie Taddeo Providence won the Big East regular-season championship but is the third betting option at SI Sportsbook behind Villanova and UConn. The 20022 Big East men’s basketball Tournament tips off Wednesday at Madison Square Garden with No. 8 Xavier facing No. 9 Butler. Providence, Villanova, Connecticut, Creighton and Marquette all earned a first-round bye and will not play until Thursday in the quarterfinals. This year’s Big East tournament will feature three of the best teams in the country in Villanova, Providence and UConn. Despite beating Providence twice in the regular season,…